Pipe reaming and cleaning device



B. F. TADE PIPE REAMING AND CLEANING DEVICE Filed July 26, 1945 3 Sheets-Sheet l INVEN TOR.

NW0 7 W44,

B. F. TADE 2,32,,Q36

PIPE REAMING AND CLEANING DEVICE Filed July 26, 1943 5 Sheets-Sheet 2 A'ITDRNEYS PIPE REAMING AIfID CLEANING DEVICE Filed July 26, 1943 3 Sheets-Sheet 3 Patented Nov. 7, 1944 v UNITED STATES PATENT OFFICE Application July 26, 1943, Serial No. 496,220

8 Claims.

My invention relates to new and useful improvementsin pipe reaming and cleaning devices. An important object, of myiinvention is the provision of a device which will square the end of a piece 'of'pipe applied thereto andsimultane- Yet another object of my invention is the provision of a device of the'zabove mentioned charac'ter wherein the parts "for receiving the ends of the pipes and 'fittingsare detachably associated with the device whereby to "be easily removed and whereby members of a various sizes may beeasily attached to the device whereby to accommodate pipes and fitting of any size.

A furtherobject of my 'inven'tionis the prevision of'a'device of the above mentioned character that is light in weight, simple in construction, inexpensive tomanufacture and efficient and emcacious in the performance of its duties.

Other objects and advantages of my'invention will be apparent during the course of thefollowing description.

In the drawings, forming a part of this specificationand wherein like numerals are employed to designate like parts throughout "the same,

.Figure .1 is a front elevation of a device embodying my invention, 1

Figure 2 isla rear .elevation thereof,

Figure 3 is a longitudinal sectional view taken on-the line 3-3.of l ligure 1,

a Figure '4 is a transverse sectional view taken on the line 4-4 of Figure 1,

:Figure 5 is afragmentary front elevation similarsto Figure l -but :showing the strip of emery cloth 'operatively associated "with the end of a p pe.

"Figure 6 :is a longitudinal-sectional view taken on the line 6-6 of Figure 3, and showing the spring 'em'bodying a part of the invention in the initial or released position,

Figure '7 is 'a viewsimilar to Figure '6 but showing the spring in the tensi'oned :or terminal position,

' Figure 8 is a transverse sectional view taken ontheline8-8 of Figure'S, and

l ig'ure 9 is aside elevation of "the stud illustratedin Figure 8 and showing a section ofthe emery cloth wrapped thereabout.

:In the accompanying drawings, wherein for the purpose of illustration, is shown a preferred embodiment of my invention, the numeral l0 designates the body of my device, which body is of substantially cylindrical formation. The annular' wall ll thereof is provided with an annular recess I2 at the end 13 :thereof and with anannular flange I4 at'the end [5 thereof.

-A disk I6 is mounted for rotation about the body. The disk is mounted in the annular recess l2 thereof and is held in engagementwith the shoulder l1 formed at the juncture of the recess with the body wall H by means of the colla 18 which is fitted tothe body at theouter side of the disk and is held in fixed'association therewith by'means of the set screw l 9.

As best illustrated in Figures 6 and 7 the flange M of the body is formed with a segmental lip 20 which extendsfor only arelatively slight distance along the circumference of the flange and provides shoulders-2| and 22 against which the stud 23 carried by the disk seats to limit the movement of the disk'about the body.

The stud is'formed with a relatively longcylindrical portion 24 having a shank 25 of reduced diameter extending from the inner-end thereof.

The radial'shoulder 26 formed at the juncture of the shank with the portion 24 abuts against the outer face of the flange 14 and the screw threaded terminal end of the shank extends through an opening provided in the disk to receive the nut 2 which may be threaded tightly thereon to hold the stud. fixedly associated with the body and disk. The bodycarriesa rotatable spool 25 which extends outwardly from the flange l4 and in spaced parallel relation with the stud '23. The spool is formed with a cylindrical portion 29 which is substantially coextensive with the cylindrical portion 24 of the stud and with the shank :30 of reduced diameter which extends through the flange of the body and receives a collar M which is interposed between the flange and the disk and isheld in fixed'association'with the shank'of the spool by means of the set screw 32. v s

A cutting miller is tremovably mounted on=the end 15 of the body, the miller being of essen' tially circular formation in plan and having a pluralityof radially disposed teeth'34in its outer face and a pair of diametrically opposed studs projectingfrom its rearward face and fitting in t-recesses in the end of 15 of the body. A guide 36 of cylindrical formation is also mounted on the end I5 of. the body. The cylindrical portion of the guide is cut out as at 3! to lighten the same and'the rearward end thereof is provided centrally thereof with a longitudinally extending shank 38 of square formation in transverse section, which shank is removably fitted within aligning openings of similar formation in the body and miller. The radial shoulder 39 formed at the juncture of the shank with the cylindrical body of theguide overlays the central portion of the miller and holds the same normally immovably associated with the body. The guide is pref erably easily removable and I have therefore provided spring pressed detents 40 in the wall of the body opening which seat within recesses provided in the shank 38 to normally securely but detachably hold the guide associated with the body.

As best illustrated in Figures 6 and 7 the disk may be moved about the body within limits defined by the shoulders 2! and 22. When the stud 23 is in the position illustrated in Figure 6 to engage the shoulder 2| it is in the initial position and I have provided a coil spring 42 which has the inner end thereof securely attached to the collar 3| of the spool 28 and the outer end thereof secured to the portion of the stud shank 25 extending between the flange of the body and the disk. The spring is coiled about the collar of the spool and is readily accommodated in the annular channel formed between the disk and the body flange. When the disk is rotated in the direction of the arrow in Figure 6 by means of the handle 43 it will tension the spring 42 and wrap the spring about the annular wall H of the body in the manner illustrated in Figure 7. The terminal shoulder 22 of the body lip 20 comprises a recess into which the stud must pass in order to effect engagement with the body. This recess provides an overhanging lug 44 which carries the end 45 of a leaf spring 46. The outer end of the spring is freely independently movable in the direction of the flange and the middle portion thereof is bowed in the direction of the flange. A pin 41 is mounted for sliding movement in the end of the lug 44 and I prefer that this pin have a friction fit so that the outer end thereof which engages the free end of the leaf spring will be adjustable to flex the spring a selected distance away from the lug and to normally hold the spring in the selected adjusted position. As clearly illustrated in Figure 7 movement of the stud 23 into engagement with the shoulder 22 of the lip will cause. the same to flex the bowed intermediate portion of the leaf spring and to pass therebeyond, which portion of the leaf spring will then flex outwardly to engage the stud and to hold the same securely seated against the shoulder. Obviously, the tension which the leaf spring will exert against the stud will depend upon the extent to which it has been flexed by the pin 41.

As the stud 23 travels around the body upon rotation of the disk it will carry one end of the emery cloth 48 therewith. Figure 1 illustrates this cloth in the initial position of the disk and Figure 5 illustrates the position of the cloth in the terminal position thereof. The end 49 of the cloth is fixedly attached to the spool and the opposite end 50 thereof is fixedly attached to the stud. When the coil spring 42 is wound about the collar 3| of the spool in the manner illustrated in Figure 6 the strip of emery cloth will be wound about the spool in the manner'illustrated in Figure 1. As the disk is moved relative to the body and the stud 23 is caused to move toward the terminal position the spring will rotate the spool and the stud will carry the strip of emery cloth about the guide 36 in the manner illustrated in Figure 5.

By arranging the parts in this manner a pipe to be attached to a fitting may be suitably ground and polished in a single operation. The pipe is here designated by the numeral 5| and is best illustrated in Figures 3 and 5. The end to be attached to the fitting is slipped over the guide 36 which, it must be remembered, is removably associated with the body whereby to permit a guide of requisite size to be fitted to the body. The disk is then rotated about the body in the direction of the arrow in Figure 6 until the shank portion of the stud is engaged by the leaf spring 46. During the rotation of the disk the stud 23 will carry the emery cloth 48 about the end of the pipe which is fitted to the guide. The emery cloth is wrapped about the spoolwith the emery surface on the inside so that the emery surface will be disposed in confronting relation with the pipe when it is wrapped thereabout. Another advantage to arranging the emery cloth in this manner is that the emery surface of the cloth will be wrapped on the inside and protected from grease, dirt and other elements which would tend to destroy its efiiciency'. If the body is rotated the cutting miller 33 will grind the end of the pipe which is forced a sufficient distance along the guide to bring the end thereof into abutting engagement with the miller and the portion of the emery cloth contacting the pipe will be caused to travel therearound to thoroughly clean and polish the outer surface of the mentioned end thereof. Manifestly, the tensioning of the spring 42 when the disk is in the terminal position will react against the spool to rotate the same in a reverse direction to the direction in which it was rotated when the spring was unrolled therefrom. The spring will therefore react to rotate the spool in a direction to wind. the emery cloth thereabout and will thus hold the emery cloth carried by the spool tautly stretched about the pipe to insure an eflicient abrasive action of the cloth against the pipe when the body is rotated.

I have found that as the body is rotated friction is developed and the pull of the stud 23 against the leaf spring 46 is increased as the friction increases. The pin 47 may be adjusted to cause the spring to release the stud when the friction reaches a predetermined maximum and this action is substantially automatic in its operation.

I have provided an operating lever 52 for effecting manual rotation of the body, which lever comprises a hub portion 53, one end of which is permanently fitted within a recess 54 in the end 13 of the body. The lever includes spaced parallel rod members 54 and 55 which slidably receive the hub 53 and finger receiving portions" 56 and 57 integrally formed at the opposite ends of the rods. In rotating the body the operating lever is normally disposed with the finger receiving portions 56 and 51 at substantially equal distance from the body in the manner illustrated in Figure 1.

one of the finger receiving end portions 56 and 51 of the lever and leverage imparted thereto whereby to effect rotation of thebody. If de- The thumb and one of the fingers of one hand may each be fitted in a respectivesired,*ihowever,.thedever-mayzsbezshiftemazmaxi- '=mum.:distance ;in-.one sdirectionzwhereby; toppermitaasubstantial leverage torbeiobtainecl'zandrin this-position: of" the .leverrthe: endr-thereof proa'ecting: from the body dsggrasped'xwith one-hand ttdsz' disposed centrally within thebody of the reamenand the shanlc651 thereof: extends through a: centrally located bore z-providedzin the end'wa'll inland shank: 6 I a of the. reamer. The portion .of

theshank- 65. extending beyond. the reamer shank .is screw. threadedandxarnutu 66 :is lfitted: thereto to holdzthe spindleti fixedly -but-removablyvdis-- posertwithin. the reamer. 51A; strip of emery cloth Shis .wrappedrabout-the sheath :GBwof rubber or-the "like whichmsurroundsuthe body ofxthe reamer and 1' thee-ends; thereof I extend through-a longitudinal slot-69 in the body of the reamer. Gneendoff the :clotha-isaflxedly secured .:to the spindle 64 and thecopposite end thereof is: disposed :underthezwrappedwlayers :of emery: cloth surrounding .the.spindle. Thisarrangement .permits the cloth to beseasily-shifted when the,=portion thereof surrounding the body of the reamer becomesworn. .Itdsorfly necessary to loosen the nut 66 to permit the spindle to be rotated and a fresh section of cloth to be moved into operative relation with the outer surface of the reamer. I prefer that the outer marginal edge of the cloth projects slightly beyond the end of the reamer in the manner illustrated in Figure 3 so that when a pipe is fitted over the body of the reamer the projecting marginal edge of the cloth will fold about the end of the reamer and abrasively react against the shoulder of the fitting or pipe. Obviously, when the body is rotated by means of the operating lever the abrasive outer surface of the cloth surrounding the body of the reamer will abrasivelyreact against the internal surface of the fitting to thoroughly clean the same. The

rubber sheath 68 will provide 'an inherently formative underlayer for the emery cloth and will hold the same snugly pressed against the inner surface of the fitting or pipe. I have made the reamer removable in order that a reamer of a size suitable for the particular grinding operation may be easily associated with the body.

It may thus be seen that it. will be a matter of but a few minutes to thoroughly clean the inner surface of a fitting and to simultaneously square and clean the end and outer surface of a pipe to be attached to the fitting. The operation hereinabove described may be easily performed by a single individual and with a minimum expenditure of time and labor.

It is to be understood that the form of my invention, herewith shown and described, is to be taken as a preferred example of the same and that various changes in the size, shape and arrangement of parts may be resorted to Without departing from the spirit of my invention or the scope of the appended claims.

Having thus described my invention, I claim:

1. A device comprising abody having a guide projecting from one side thereof, a disk mounted on thenbody; for rotation thereabout, 835130015 10- tatably "mounted :on itthe :body sand 1' extending therefrom laterally of :=.,the guide, and a a c'stud projecting .1 from' the. disks and --extending inijthe directionof and parallel to the said :spool, ,the arrangement .being i such that rotation -of the disk about the :body will :cause the: stud carried therebyzto unroll: an abrasive material from the spool, the: said: material being: normally :wound about the spool and having one endsecuredto the stud.

2. Aqdevice comprising a :body,: a cuttingxmiller removably secured to onesside of a the" bodypa guide having a shank: portion normally fixedly received within aligning: openings in' the .miller and body and .-a radial shoulder which abuts against theumiller'torhold the; same immovably connected with the body, a spool projecting from the body laterally of the guide, a diskmountedon the body forrotation thereabout, and-ra-stud carried by thev disk and extendingtherefrom in lateral parallelism with the: spool, the arrangement being such that-a quantityyof 1 abrasive material -wrapped a-bout the spool and having an end secured to the stud will be unwoundfromethe spool'and wound about: theguide when the disk is rotated about. the body.

3. A device comprising abody,-a cutting miller removably mounted. on: one side of thebody, -.a guide having --a shank-extending through'alig-ning openings in the: miller and- :bodyand a radial shoulder abutting against the miller formnormally holding: .the {same securely. associated with the body,s.a-roll of-abrasive material, andmeans carrying the said material rotatably-associated with the :body and operative to .unroll thematerial and to wrap the same about the guide upon movement thereof relative to the body.

4. A device comprising a body having a centrally located guide projecting from one side thereof and a spool projecting from the mentioned side laterally of the guide, a strip of abrasive cloth wrapped about the spool, a member rotatable about the body, and means rotatably mounted on the member operative to unroll the clothfrom the spool and to wrap the same about the guide upon movement of the same with said member about the body.

5. A device comprising a body having a centrally located guide projecting from one side thereof, a member rotatable about the body, a spool projecting from the member laterally of the guide, a strip of abrasive cloth wrapped about the spool, and a cutting means mounted on the mentioned side of the body in surrounding relation with the said guide for grinding the end of a tubing fitted to the guide and abutting thereagainst.

6. A cutting and polishing device for pipes comprising a body having a centrally located guide projecting from one side thereof for receiving an end of a pipe to be cut and polished, a cutting means mounted on the mentioned side of the body in surrounding relation with the guide for contacting the end of the pipe applied to the guide, a disk mounted for rotation about the body, a spool projecting laterally from the disk, a stud carried by the body projecting therefrom in spaced parallel relation with the spool, a strip of emery cloth wrapped about the spool and having one end thereof secured to the said stud, stop means for limiting the movement of the disk between the initial and the terminal position, means for holding the disk in the terminal position, the arrangement being such that a pipe may be fitted to the guide and moved into abutting engagement with the cutting means whereby movement of the disk from the initial to the terminal position will cause the stud carried by the disk to unroll the emery cloth from the spool and wrap the same about the attached end of the pipe so that rotation of the body will efiect cutting of the end of the pipe and movement of the emery cloth thereabout to clean the outer surface of the pipe.

7. A cutting and polishing device for pipes comprising a body having a centrally located guide projecting from one side thereof for receiving an end of a pipe to be cut and polished, a cutting means mounted on the mentioned side of the body in surrounding relation with the guide for contacting the end of the pipe applied to the guide, a disk mounted for rotation about the body, a spool projecting from the disk laterally of the guide, a stud carried by the body projecting therefrom in spaced parallel relation with the spool, a strip of emery cloth wrapped about the spool and having one end thereof secured to the said stud, stop means for limiting the movement of the disk between the initial and the terminal position, an adjustable catch element for holding the disk in the terminal position, the arrangement being such that the cutting means will grind the end of a pipe fitted to the guide upon rotation of the body and such that movement of the disk from the initial to the terminal position will'cause thestud carried thereby to unwind the emery cloth from the spool and to wrap the same about the mentioned end of the pipe, rotation of the body effecting simultaneous cutting of the end of the pipe and cleaning of the outer surface thereof and'the adjustable nature of the stop means being adapted to release the disk when the friction of the emery cloth against the pipe reaches a predetermined maximum.

8. A device for cutting and cleaning pipes com- J prising a body having a central bore of square cross section, a handle having a hub portion fixedly attached to the body and the said hub having a central bore of square cross section arranged in register with the bore of the body, a guide having a square shank portion snugly fitting within the bore of the body and detachably holding the guide associated therewith, an internal reaming element having a square shank portion snugly fitting within the bore of the handle hub, a cutting element mounted on the body in surrounding relation with the said guide and having parts thereof extending under the radial shoulder portion of the guide and being securely but detachably held against the body thereby, a disk rotatably mounted on the body, a spool projecting from the disk laterally of the guide, a stud carried by the body and extending therefrom in spaced parallel relation with the spool, and a strip of emery cloth wrapped about the spool and having one end thereof secured to the stud whereby movement of the disk about the body will unwrap the cloth from the spool and wrap the same about the pipe fitted to the guide, whereby rotation of the body will effect cutting of the end of the pipe and cleaning of the outer surface thereof and whereby a pipe fitted to the said internal reamer will be simultaneously cleaned thereby.

BENJAMIN F. TADE. 

